1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
This is a good age to introduce the computer. With practice, children now have the ability to manipulate the mouse, and are able to use a variety of software. Electronic storybooks are a wonderful choice, as well as simple simulation programs such as the Putt-Putt series from Humongous.onsequently, the software you pick will have to be responsive to when toddlers move or click the mouse or to their presses on the keyboard. Age 2 1/2 can be a real turning point for many children when it comes to computer use.